{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52603",
    "entityType": "User",
    "nonce": "0x90c95443421b7c5191c476368924e64371a847404bec1f25396e7b55fb5f7663",
    "signature": "0x0a3202bdca3f273178553a9f5fe62e62a49b3a9bcaffdc23208e13e870e502aa05693855aab7b8bfbf825ea79f638066e46ac49525018a8ced007d9c216178dc1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}